In a bag, the ratio of red balls to green balls is 4:9. If 7 more red – McqOptions

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1.	In a bag, the ratio of red balls to green balls is 4:9. If 7 more red balls are added to the bag, the ratio of red balls to green balls will become 5:6. How many green balls are there in the bag?
A.	12
B.	27
C.	18
D.	9
Answer» D. 9

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